Quick Detail: 1.XY-4 is a mechanical driven and hydraulic fed and high rotary speed of core drill. 2.It is easy to operate and disassemble,convenient to transport and maintain. 3.It can be also suitable for engineering geological subterranean water explorations as well as explorations of superficial-zone petroleum and natural gas, mine workings ventilation and water discharge tunnel drilling. Description: 1.XY-4 core drill is developed to meet the needs of users and the development of geological works.It is easy to operate and disassemble ,convenient to transport and maintain.Its design is advanced,reasonable and compact. 2.XY-4 core drill has won the national silver medal in 1983. 3.The drill has 8 rotary speed stage, the maximum speed 1,588rpm, the minimum speed 135rpm, so it is suitable for various drilling for solid mineral deposits with diamond or carbide bit. 4.It can be also suitable for engineering geological subte…